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  <title>Not at EOF</title>

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</div><hr /><div id="splfileobject.valid" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">SplFileObject::valid</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0)</p><p class="refpurpose"><span class="refname">SplFileObject::valid</span> &mdash; <span class="dc-title">Not at EOF</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-splfileobject.valid-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>SplFileObject::valid</strong></span>
    ( <span class="methodparam">void</span>
   )</div>

  <p class="para rdfs-comment">
   Check whether EOF has been reached.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-splfileobject.valid-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-splfileobject.valid-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns <strong><code>TRUE</code></strong> if not reached EOF, <strong><code>FALSE</code></strong> otherwise.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-splfileobject.valid-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3881">
    <p><strong>Example #1 <span class="methodname"><strong>SplFileObject::valid()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">//&nbsp;Loop&nbsp;over&nbsp;a&nbsp;file,&nbsp;line&nbsp;by&nbsp;line<br /></span><span style="color: #0000BB">$file&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">SplFileObject</span><span style="color: #007700">(</span><span style="color: #DD0000">"file.txt"</span><span style="color: #007700">);<br />while&nbsp;(</span><span style="color: #0000BB">$file</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">valid</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #0000BB">$file</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fgets</span><span style="color: #007700">();<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-splfileobject.valid-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="methodname"><a href="splfileobject.current.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::current()</a> - Retrieve current line of file</span></li>
    <li class="member"><span class="methodname"><a href="splfileobject.key.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::key()</a> - Get line number</span></li>
    <li class="member"><span class="methodname"><a href="splfileobject.seek.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::seek()</a> - Seek to specified line</span></li>
    <li class="member"><span class="methodname"><a href="splfileobject.next.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::next()</a> - Read next line</span></li>
    <li class="member"><span class="methodname"><a href="splfileobject.rewind.html" class="methodname" rel="rdfs-seeAlso">SplFileObject::rewind()</a> - Rewind the file to the first line</span></li>
   </ul>
  </p>
 </div>


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